Astaxanthin nanometer preparation prepared by electrostatic spraying method and preparation method thereof

The invention discloses an astaxanthin nanometer preparation prepared by an electrostatic spraying method and a preparation method thereof, and relates to the field of nanometer drug preparations. Theastaxanthin nanometer preparation consists of astaxanthin, a nuclear layer carrier and a shell layer carrier; a drug, a hydrophilic polymer carrier and an absorption promoting component are dissolvedin a nuclear layer mixed solvent; the hydrophilic polymer carrier is dissolved in water, and the astaxanthin solid nanometer preparation is prepared by the hydrophilic polymer carrier and the absorption promoting component by adopting the coaxial electrostatic spraying method. The mass ratio of the astaxanthin to the hydrophilic polymer carrier to the absorption promoting component in a nuclear layer solution is 1 to 0-8 to 2-4; the total concentration of the hydrophilic polymer carrier and the absorption promoting component in the nuclear layer solution is 0.2-1.2 percent (w/v); the total concentration of the shell l